This application discloses a resource configuration method and an apparatus. The method includes: obtaining, by a terminal device, configuration information, where the configuration information includes at least one piece of the following information: random access resource configuration information and downlink signal parameter information; and accessing, by the terminal device, a network device based on the configuration information. A corresponding apparatus is also disclosed.
Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method, comprising: obtaining, by a terminal device, random access configuration information, wherein the random access configuration information comprises one or more pieces of following information: a preamble format, a system frame number (SFN) of random access resources, a subframe number of the random access resources, a start orthogonal frequency division multiplexing (OFDM) symbol for the random access resources, random access preamble grouping information, a subcarrier spacing, a starting position of a frequency where the random access resources are located, or timing advance (TA); receiving, by the terminal device, a first downlink signal of a plurality of downlink signals; determining, by the terminal device, a first random access resource during a time period T RA based on association of the first random access resource with the first downlink signal, wherein the T RA is an association period during which the random access resources allocated are associated with the plurality of downlink signals, and a period of association relationship between the random access resources and the plurality of downlink signals is the T RA ; and transmitting, by the terminal device, a random access preamble to a network device in the first random access resource: and wherein a SFN where a start location of the random access resources is located satisfies following formula: Mod (SFN, T RA /10 ms)=N,N is a non-negative integer less than T RA /10 ms, and Mod is a modulo operation.
Wireless communication. This invention addresses the need for efficient random access procedures in cellular networks, particularly when multiple downlink signals are present. The method involves a terminal device obtaining random access configuration information. This information can include details such as the preamble format, system frame number (SFN) of random access resources, subframe number, starting OFDM symbol, preamble grouping, subcarrier spacing, frequency starting position, or timing advance. The terminal device then receives a first downlink signal from a set of downlink signals. Based on an association between this first downlink signal and a specific random access resource, the terminal device determines a first random access resource to use during a defined time period, referred to as T RA. This T RA represents the period during which allocated random access resources are associated with the plurality of downlink signals. Finally, the terminal device transmits a random access preamble to a network device using this determined first random access resource. A specific constraint is applied to the SFN where the random access resources begin: the SFN modulo (T RA divided by 10 milliseconds) must equal a non-negative integer N, where N is less than T RA divided by 10 milliseconds.
2. The method according to claim 1 , wherein the first downlink signal is a synchronization signal/physical broadcast channel (SS/PBCH) or channel state information-reference signal (CSI-RS) received from the network device, and wherein the random access resources are random access channel occasions (RACH occasions).
This invention relates to wireless communication systems, specifically methods for improving random access procedures in cellular networks. The problem addressed is the need for efficient and reliable initial access and synchronization between a user device and a network device, particularly in scenarios where precise timing and channel state information are critical. The method involves receiving a first downlink signal from a network device, which can be either a synchronization signal/physical broadcast channel (SS/PBCH) or a channel state information-reference signal (CSI-RS). These signals are used to establish initial synchronization and provide essential system information. The method further includes determining random access resources, specifically random access channel occasions (RACH occasions), which define the time-frequency slots available for the user device to initiate a random access procedure. The user device then selects one of these RACH occasions to transmit a random access preamble to the network device, facilitating the establishment of a communication link. The method may also involve adjusting the transmission power of the random access preamble based on the received downlink signal to ensure reliable reception by the network device. Additionally, the method may include monitoring for a response from the network device after transmitting the preamble, allowing the user device to proceed with further synchronization and data transmission steps. This approach enhances the efficiency and reliability of the random access process in wireless communication systems.
3. The method according to claim 1 , wherein a value of the T RA is 2 n *5 millisecond (ms), and n is an integer between 0 and 9.
This invention relates to wireless communication systems, specifically to methods for determining a timing advance (TRA) value in a network. The problem addressed is optimizing the synchronization of uplink transmissions from a user device to a base station to reduce latency and improve efficiency. The method involves calculating a TRA value based on a predefined formula where the TRA is set to 2^n multiplied by 5 milliseconds (ms), with n being an integer between 0 and 9. This ensures precise timing adjustments for different propagation delays in the network. The TRA value is used to align the user device's transmission timing with the base station's reception window, compensating for signal travel time. The method may also include determining the propagation delay between the user device and the base station, which is then used to select the appropriate n value. The invention aims to minimize timing errors, reduce collisions, and enhance overall network performance by dynamically adjusting the TRA based on measured delays. The approach is particularly useful in scenarios where user devices are at varying distances from the base station, ensuring efficient uplink synchronization.
4. The method according to claim 1 , wherein the T RA has a value that is one of a plurality of candidate values, and the plurality of candidate values include one or more of following values: 10 ms, 20 ms, 40 ms, 80 ms, 160 ms, or 640 ms.
This invention relates to wireless communication systems, specifically methods for determining a transmission time interval (TTI) duration in a radio access network. The problem addressed is optimizing TTI duration to balance latency and resource efficiency in data transmission. The method involves selecting a TTI duration from a predefined set of candidate values, which include 10 ms, 20 ms, 40 ms, 80 ms, 160 ms, or 640 ms. The selection is based on network conditions, traffic type, or device capabilities to improve communication efficiency. The method may also involve dynamically adjusting the TTI duration during communication sessions to adapt to changing conditions. The invention aims to enhance data transmission performance by allowing flexible TTI configuration, reducing unnecessary delays for time-sensitive applications while maintaining efficient resource utilization for less critical traffic. The candidate values cover a range of durations suitable for different use cases, from low-latency requirements to high-throughput scenarios. The method may be implemented in a base station or network controller to manage uplink and downlink transmissions.
5. The method according to claim 1 , wherein when the random access configuration information includes the SFN of the random access resources, the SFN of the random access resources satisfies at least one of following formulas: Mod (SFN,2)=0, Mod (SFN,2)=1; Mod (SFN,4)=0, Mod (SFN,4)=1, Mod (SFN,4)=2, Mod (SFN,4)=3; Mod (SFN,8)=0, Mod (SFN,8)=1, Mod (SFN,8)=2, Mod (SFN,8)=3, Mod (SFN,8)=4, Mod (SFN,8)=5, Mod (SFN,8)=6, Mod (SFN,8)=7; or Mod (SFN,16)=0, Mod (SFN, 16)=1, Mod (SFN, 16)=2, Mod (SFN, 16)=3, Mod (SFN, 16)=4, Mod (SFN, 16)=5, Mod (SFN, 16)=6, Mod (SFN, 16)=7; and Mod is a modulo operation.
In wireless communication systems, efficient random access procedures are essential for managing device connectivity and resource allocation. A method is disclosed for configuring random access resources in a cellular network, where the system frame number (SFN) of these resources is determined based on specific modulo conditions. The SFN, which identifies the timing frame in the network, is selected to satisfy one or more predefined modulo relationships. These relationships include SFN values that are even or odd (Mod(SFN,2)=0 or 1), divisible by 4 with remainders 0 through 3 (Mod(SFN,4)=0,1,2,3), divisible by 8 with remainders 0 through 7 (Mod(SFN,8)=0-7), or divisible by 16 with remainders 0 through 15 (Mod(SFN,16)=0-15). The modulo operation ensures that random access opportunities are distributed across different frames in a structured manner, optimizing resource utilization and reducing collisions. This approach allows the network to dynamically adjust random access timing based on traffic patterns, improving overall system efficiency and reliability. The method is particularly useful in 5G and beyond networks where flexible and scalable random access mechanisms are required.
6. The method according to claim 1 , further comprising: determining, by the terminal device, the random access preamble based on the random access configuration information.
A method for wireless communication involves a terminal device performing random access procedures in a wireless network. The method addresses the challenge of efficiently initiating communication in a wireless network by determining a random access preamble based on received random access configuration information. The terminal device first receives random access configuration information from a network node, which specifies parameters for random access procedures. The terminal device then determines a random access preamble using this configuration information. The preamble is a signal transmitted by the terminal device to request access to the network, and its selection is critical for proper synchronization and resource allocation. The method ensures that the terminal device selects an appropriate preamble based on the network's configuration, optimizing the random access process and reducing collisions or delays. This approach enhances the reliability and efficiency of initial network access, particularly in scenarios with high device density or varying network conditions. The method may be applied in various wireless communication systems, including cellular networks, to improve access procedures and overall network performance.
7. The method according to claim 6 , further comprising: receiving, by the terminal device, an index of the first downlink signal.
A system and method for wireless communication involves a terminal device receiving an index of a first downlink signal. The terminal device is configured to determine a first time domain resource for receiving the first downlink signal based on the index. The first downlink signal is associated with a first synchronization signal block (SSB) and is transmitted by a network device. The terminal device also determines a second time domain resource for receiving a second downlink signal based on the index, where the second downlink signal is associated with a second SSB. The terminal device then receives the first downlink signal on the first time domain resource and the second downlink signal on the second time domain resource. The method ensures efficient synchronization and communication between the terminal device and the network device by dynamically allocating time domain resources for downlink signals based on SSB indices. This approach optimizes resource utilization and reduces interference in wireless networks.
8. The method according to claim 1 , further comprises: determining, by the terminal device based on the random access configuration information, the T RA .
A method for random access configuration in wireless communication systems addresses the challenge of efficiently managing random access procedures between a terminal device and a network. The method involves configuring a terminal device with random access configuration information, which includes parameters for selecting a time resource allocation (TRA) for transmitting a random access preamble. The terminal device determines the TRA based on the received configuration information, ensuring proper synchronization and resource allocation during the random access process. This method optimizes the use of network resources by dynamically adjusting the TRA selection based on network conditions and terminal device requirements, improving the efficiency and reliability of random access procedures in wireless communication systems. The configuration information may include timing parameters, frequency resources, and other relevant details to facilitate the selection of an appropriate TRA for the terminal device. By dynamically determining the TRA, the method enhances the overall performance of the random access process, reducing latency and improving the success rate of initial access attempts. This approach is particularly useful in scenarios where multiple terminal devices compete for network resources, ensuring fair and efficient access to the network.
9. The method according to claim 1 , wherein the N is 0.
A system and method for optimizing data processing in a distributed computing environment addresses inefficiencies in resource allocation and task scheduling. The invention focuses on dynamically adjusting computational workloads across multiple nodes to improve performance and reduce latency. A key aspect involves determining an optimal number of processing iterations (N) for a given task, where N can be zero, indicating that no further processing is required. This adaptive approach minimizes unnecessary computations, conserves energy, and enhances throughput. The method includes analyzing task dependencies, evaluating node availability, and applying machine learning models to predict the most efficient processing path. When N is zero, the system bypasses redundant operations, ensuring resources are allocated to higher-priority tasks. The invention also incorporates real-time monitoring to adjust parameters dynamically, ensuring sustained efficiency under varying workload conditions. By integrating these features, the system achieves a balance between computational accuracy and resource utilization, making it suitable for applications in cloud computing, edge computing, and large-scale data analytics. The method is particularly beneficial in scenarios where tasks have variable complexity and resource demands, such as real-time data streaming or distributed machine learning.
10. An apparatus for resource configuration, comprising: one or more memories configured to store instructions; and one or more processors coupled to the one or more memories and configured to execute the instructions to cause the apparatus to: obtain random access configuration information, wherein the random access configuration information comprises one or more pieces of following information: a preamble format, a system frame number (SFN) of random access resources, a subframe number of the random access resources, a start orthogonal frequency division multiplexing (OFDM) symbol for the random access resources, random access preamble grouping information, a subcarrier spacing, a starting position of a frequency where the random access resources are located, or timing advance (TA); receive a first downlink signal of plurality of downlink signals; determine a first random access resource during a time period T RA based on association of the first random access resource with the first downlink signal, wherein the T RA is an association period during which the random access resources allocated are associated with the plurality of downlink signals, and a period of association relationship between the random access resources and the plurality of downlink signals is the T RA ; and transmit a random access preamble to a network device in the first random access resource: and wherein a SFN where a start location of the random access resources is located satisfies following formula: Mod (SFN, T RA /10 ms )=N, N is a non-negative integer less than T RA /10 ms, and Mod is a modulo operation.
This invention relates to wireless communication systems, specifically to an apparatus for configuring and managing random access resources in a network. The problem addressed is the efficient allocation and utilization of random access channels (RAC) to reduce latency and improve synchronization between user devices and network infrastructure. The apparatus includes memory and processing components that store and execute instructions for random access configuration. It obtains random access configuration information, which may include parameters such as preamble format, system frame number (SFN), subframe number, OFDM symbol start position, preamble grouping, subcarrier spacing, frequency position, and timing advance (TA). The system receives a downlink signal and determines a specific random access resource within a predefined association period (T_RA), where T_RA defines the duration during which random access resources are linked to downlink signals. The association ensures that the random access resource is synchronized with the downlink signal, optimizing resource allocation and reducing contention. The apparatus transmits a random access preamble to a network device using the selected resource. The SFN of the random access resource's start location must satisfy the formula Mod(SFN, T_RA/10ms) = N, where N is a non-negative integer less than T_RA/10ms. This ensures proper alignment of random access opportunities with downlink signaling, improving efficiency and reliability in wireless communication networks.
11. The apparatus according to claim 10 , wherein the first downlink signal is a synchronization signal/physical broadcast channel (SS/PBCH) or channel state information-reference signal (CSI-RS) received from the network device, and the random access resources are random access channel occasions (ROs).
This invention relates to wireless communication systems, specifically improving random access procedures in cellular networks. The problem addressed is the need for efficient and reliable synchronization and channel state estimation in wireless devices when initiating communication with a network. The apparatus includes a wireless device configured to receive a first downlink signal from a network device, where the first downlink signal is either a synchronization signal/physical broadcast channel (SS/PBCH) or a channel state information-reference signal (CSI-RS). The wireless device uses this signal to synchronize with the network and estimate channel conditions. The apparatus also includes a processor that determines random access resources, specifically random access channel occasions (ROs), based on the received downlink signal. These resources are used by the wireless device to initiate random access procedures, such as transmitting a preamble to the network. The invention ensures that the wireless device can accurately time its transmissions and adapt to varying channel conditions, improving the reliability and efficiency of the random access process. The apparatus may further include a transmitter for sending the random access preamble to the network device, completing the synchronization and access procedure. This solution is particularly useful in scenarios where rapid and accurate synchronization is critical, such as in high-mobility environments or dense network deployments.
12. The apparatus according to claim 10 , wherein a value of the T RA is 2 n *5 millisecond (ms), and n is a integer between 0 and 9.
Electronic signal processing apparatus. This invention addresses the need for flexible timing parameters in communication systems, particularly for transmission timing adjustments. The apparatus includes a transmission timing adjustment (TRA) unit. This unit is configured to control the value of a transmission timing adjustment period (T_RA). The T_RA is set to a value of 2 raised to the power of an integer 'n', multiplied by 5 milliseconds. The integer 'n' can range from 0 to 9, inclusive. This allows for a discrete set of TRA values, enabling precise control over transmission timing for various communication scenarios.
13. The apparatus according to claim 10 , wherein the T RA has a value that is one of a plurality of candidate values, and the plurality of candidate values include one or more of following values: toms, 20 ms, 40 ms, 80 ms, 160 ms, or 640 ms.
This invention relates to wireless communication systems, specifically improving transmission reliability and efficiency by optimizing the transmission time interval (TTI) duration in a transmission and reception point (TRP). The problem addressed is the need for flexible TTI configurations to accommodate varying channel conditions, service requirements, and network demands. The invention provides an apparatus where the TRP includes a configurable TTI duration (TRA) that can be set to one of several predefined candidate values. These candidate values include 10 ms, 20 ms, 40 ms, 80 ms, 160 ms, or 640 ms. The apparatus dynamically selects the appropriate TTI duration based on factors such as channel quality, latency requirements, or traffic type. This flexibility allows the system to balance between latency and reliability, optimizing resource utilization and overall performance. The apparatus may also include components for monitoring channel conditions, adjusting the TTI duration in response to changes, and coordinating with other network elements to ensure seamless operation. The invention is particularly useful in scenarios where different services or devices require different TTI durations, such as in 5G or beyond-5G networks.
14. The apparatus according to claim 10 , wherein when the random access configuration information includes the SFN of the random access resources, the SFN of the random access resources satisfies at least one of following formulas: Mod (SFN,2)=0, Mod (SFN,2)=1; Mod (SFN,4)=0, Mod (SFN,4)=1, Mod (SFN,4)=2, Mod (SFN,4)=3; Mod (SFN,8)=0, Mod (SFN,8)=1, Mod (SFN,8)=2, Mod (SFN,8)=3, Mod (SFN,8)=4, Mod (SFN,8)=5, Mod (SFN,8)=6, Mod (SFN,8)=7; or Mod (SFN,16)=0, Mod (SFN, 16)=1, Mod (SFN, 16)=2, Mod (SFN, 16)=3, Mod (SFN, 16)=4, Mod (SFN, 16)=5, Mod (SFN, 16)=6, Mod (SFN, 16)=7; and Mod is a modulo operation.
In wireless communication systems, efficient management of random access resources is critical for device connectivity and network performance. A technical solution involves configuring random access resources using specific system frame number (SFN) patterns to optimize access timing and reduce collisions. The apparatus includes a configuration module that generates random access configuration information, which may include SFN values for the random access resources. The SFN values are selected based on predefined modulo operations to ensure periodic and predictable access opportunities. The modulo operations include Mod(SFN,2), Mod(SFN,4), Mod(SFN,8), and Mod(SFN,16), where the SFN is divided by 2, 4, 8, or 16, and the remainder determines the valid SFN values. For example, Mod(SFN,2)=0 or 1 allows SFN values that are even or odd, while Mod(SFN,16) permits any SFN value from 0 to 15. This structured approach ensures that random access resources are distributed evenly across time, improving synchronization and reducing contention. The configuration module may also adjust the modulo operation based on network conditions or traffic load to dynamically optimize resource allocation. This method enhances the reliability and efficiency of random access procedures in wireless networks.
15. The apparatus according to claim 10 , the one or more processors are further configured to execute the instructions to cause the apparatus to: determine the random access preamble based on the random access configuration information.
This invention relates to wireless communication systems, specifically improving random access procedures in cellular networks. The problem addressed is the need for efficient and reliable random access preamble selection to reduce latency and improve connection success rates in wireless communications. The apparatus includes one or more processors configured to execute instructions for managing random access procedures. The processors determine a random access preamble based on random access configuration information received from a network. This configuration information includes parameters such as preamble formats, available preamble sequences, and timing constraints. The apparatus ensures that the selected preamble aligns with the network's requirements, optimizing the initial connection phase between a user device and the network. The system may also handle multiple random access attempts, adjusting preamble selection dynamically to improve success rates under varying network conditions. The invention enhances reliability and efficiency in wireless communication systems by intelligently selecting preambles to minimize collisions and reduce access delays.
16. The apparatus according to claim 10 , wherein the one or more processors are further configured to execute the instructions to cause the apparatus to: receive an index of the first downlink signal.
This invention relates to wireless communication systems, specifically improving the efficiency and reliability of downlink signal processing in cellular networks. The problem addressed is the need for more effective management of downlink signals, particularly in scenarios where multiple signals are transmitted to different devices, to ensure accurate reception and minimize resource usage. The apparatus includes one or more processors configured to execute instructions for processing downlink signals. The processors are designed to receive and analyze a first downlink signal, which may be part of a sequence of signals transmitted to a user device. The apparatus further includes functionality to determine a timing or synchronization parameter for the first downlink signal, ensuring proper alignment with other signals in the communication system. Additionally, the processors can generate a second downlink signal based on the first signal, which may involve modifying or replicating the first signal for transmission to another device or for redundancy purposes. A key feature is the ability to receive an index associated with the first downlink signal. This index helps identify the signal within a sequence or group of signals, enabling better coordination and error handling. The apparatus may also include a memory for storing signal data, parameters, or indices, ensuring efficient retrieval and processing. The overall system aims to enhance signal integrity, reduce latency, and optimize resource allocation in wireless networks.
17. The apparatus according to claim 10 , the one or more processors are further configured to execute the instructions to cause the apparatus to: determine the T RA based on the random access configuration information.
This invention relates to wireless communication systems, specifically to apparatuses and methods for determining a time resource allocation (TRA) in random access procedures. The problem addressed is the need for efficient and reliable allocation of time resources during random access, which is critical for reducing latency and improving system performance in wireless networks. The apparatus includes one or more processors configured to execute instructions to perform various functions. The processors are configured to determine the TRA based on random access configuration information. This configuration information may include parameters such as preamble formats, time slots, or other scheduling details that define how time resources are allocated for random access attempts. The apparatus may also include a transceiver for wireless communication and a memory for storing the configuration information and other relevant data. Additionally, the apparatus may be configured to receive the random access configuration information from a network node, such as a base station, and use this information to optimize the TRA determination process. The apparatus may also support multiple random access procedures, including contention-based and contention-free access, ensuring flexibility in different network scenarios. The invention aims to improve the efficiency of random access by dynamically adjusting the TRA based on the received configuration, reducing collisions and improving overall system throughput.
18. The apparatus according to claim 10 , wherein the N is 0.
This invention relates to a technical apparatus designed for a specific application, addressing the problem of optimizing performance in a system where a parameter N is involved. The apparatus includes a processing unit configured to execute operations based on a set of predefined rules or algorithms. The core functionality involves adjusting or controlling a variable parameter, denoted as N, which influences the system's behavior or output. In this specific embodiment, the parameter N is set to 0, which may represent a default, minimal, or disabled state for the system. The apparatus may further include input interfaces to receive data or commands, output interfaces to transmit results or signals, and memory components to store configurations or operational data. The processing unit may perform calculations, comparisons, or logical operations to determine the appropriate actions based on the value of N. When N is 0, the apparatus may bypass certain operations, enter a standby mode, or trigger alternative processes. The invention aims to improve efficiency, reduce computational overhead, or ensure compatibility with different operational modes by allowing N to be dynamically adjusted or fixed at 0. The apparatus may be part of a larger system, such as a control unit, sensor network, or data processing system, where the value of N plays a critical role in determining system performance.
19. The apparatus according to claim 10 , wherein the random access configuration information further comprises: a quantity of random access resources associated with a downlink signal, or, indexes of random access resources associated with the downlink signal.
This invention relates to wireless communication systems, specifically improving random access procedures in cellular networks. The problem addressed is the need for efficient and flexible configuration of random access resources to enhance synchronization and data transmission between user devices and base stations. The apparatus includes a network node that configures and transmits random access parameters to user devices. These parameters include information about the quantity of available random access resources linked to a downlink signal, or specific indexes identifying those resources. The downlink signal may be a synchronization signal or other reference signal used for initial access or handover procedures. By providing explicit details about the random access resources, the apparatus enables user devices to select appropriate resources for uplink transmissions, reducing collisions and improving network efficiency. The configuration may be dynamic, allowing the network to adapt resource allocation based on traffic conditions or device requirements. This approach optimizes the random access process, particularly in scenarios with high device density or varying channel conditions. The invention enhances reliability and speed in establishing communication links, which is critical for modern wireless networks supporting diverse services like IoT, mobile broadband, and ultra-reliable low-latency applications.
20. A computer program product comprising a non-transitory computer-readable medium storing computer executable instructions that, when executed by a processor, instruct the processor to implement a method comprising: obtaining random access configuration information, wherein the random access configuration information comprises one or more pieces of following information: a preamble format, a system frame number (SFN) of random access resources, a subframe number of the random access resources, a start orthogonal frequency division multiplexing (OFDM) symbol for the random access resources, random access preamble grouping information, a subcarrier spacing, a starting position of a frequency where the random access resources are located, or timing advance (TA); receiving a first downlink signal of a plurality of downlink signals; determining a first random access resource during a time period T RA based on association of the first random access resource with the first downlink signal, wherein the T RA is an association period during which the random access resources allocated are associated with the plurality of downlink signals, and a period of association relationship between the random access resources and the plurality of downlink signals is the T RA ; and transmitting a random access preamble to a network device in the first random access resource: and wherein a SFN where a start location of the random access resources is located satisfies following formula: Mod (SFN, T RA /10 ms)=N, N is a non-negative integer less than T RA /10 ms, and Mod is a modulo operation.
This invention relates to wireless communication systems, specifically to methods for configuring and utilizing random access resources in a network. The problem addressed is the efficient allocation and management of random access resources to ensure reliable and timely communication between user devices and network infrastructure. The invention involves a computer program product that implements a method for handling random access in a wireless network. The method begins by obtaining random access configuration information, which includes parameters such as preamble format, system frame number (SFN) of random access resources, subframe number, start OFDM symbol, preamble grouping, subcarrier spacing, frequency position, and timing advance (TA). The system then receives a downlink signal and determines a specific random access resource during an association period (T_RA), where T_RA defines how long the association between downlink signals and random access resources remains valid. The random access preamble is transmitted to the network device using the identified resource. The SFN of the random access resource's start location must satisfy the formula Mod(SFN, T_RA/10 ms) = N, where N is a non-negative integer less than T_RA/10 ms. This ensures proper synchronization and resource allocation. The method optimizes random access procedures by dynamically associating resources with downlink signals, improving efficiency and reducing latency in wireless communications.
21. The computer program product according to claim 20 , wherein the first downlink signal is a synchronization signal/physical broadcast channel (SS/PBCH) or channel state information-reference signal (CSI-RS) received from the network device, and wherein the random access resources are random access channel occasions (RACH occasions).
This invention relates to wireless communication systems, specifically improving random access procedures in cellular networks. The problem addressed is efficient resource allocation and synchronization between user devices and network infrastructure, particularly in scenarios where devices need to establish or re-establish connections. The solution involves a computer program product that processes downlink signals from a network device to determine optimal random access resources for a user device. The downlink signals include synchronization signals combined with broadcast channels (SS/PBCH) or channel state information-reference signals (CSI-RS), which provide timing and configuration information. The program analyzes these signals to identify available random access channel occasions (RACH occasions), which are specific time-frequency resources allocated for devices to initiate connection requests. By leveraging these signals, the system enables precise timing alignment and reduces contention among devices vying for access, thereby improving connection reliability and network efficiency. The invention is particularly useful in 5G and beyond networks where rapid, synchronized access is critical for low-latency applications.
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November 5, 2019
March 29, 2022
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